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12130132020 = 2235202168867
BaseRepresentation
bin10110100110000001…
…10010000000110100
31011022100222112220220
423103000302000310
5144320303211040
65323354454340
7606411264246
oct132300620064
934270875826
1012130132020
1151651637a6
1224264343b0
1311b40c8416
14831014096
154aedc82d0
hex2d3032034

12130132020 has 24 divisors (see below), whose sum is σ = 33964369824. Its totient is φ = 3234701856.

The previous prime is 12130131997. The next prime is 12130132031. The reversal of 12130132020 is 2023103121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101084374 + ... + 101084493.

It is an arithmetic number, because the mean of its divisors is an integer number (1415182076).

Almost surely, 212130132020 is an apocalyptic number.

12130132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130132020 is an abundant number, since it is smaller than the sum of its proper divisors (21834237804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12130132020 is a wasteful number, since it uses less digits than its factorization.

12130132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202168879 (or 202168877 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12130132020 its reverse (2023103121), we get a palindrome (14153235141).

The spelling of 12130132020 in words is "twelve billion, one hundred thirty million, one hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 202168867 404337734 606506601 808675468 1010844335 1213013202 2021688670 2426026404 3032533005 4043377340 6065066010 12130132020